This project describes the construction of a stereo audio hydrophone system by building upon the hydrophone design from Sound Sleuth. Major parts of the system are:
- Hydrophone with preampifier
- Amplifier and headphone driver
- Stand for underwater stereo sound seperation
- V0
- Bug. Instrumentation amplifier (U1, U2) footprint is incorrent. Therefore switched to AD620. Instrumentation amplifiers with this pinout seem have lower bandwidth.
- Bug. Q2 has its drain and source reversed.


